The report by think tank Centre for Science and Environment (CSE) said Delhi’s annual PM2.5 concentration increased to 104.7 microgrammes per cubic metre in 2024 — a 3.4 per cent rise from the 2023 levels.

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Of the 38 air quality monitoring stations across the city, 32 reported AQI levels in the “very poor” range, highlighting the worsening pollution levels in the national capital.

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Delhi’s air pollution levels showed a declining trend on Tuesday and the 24-hour average Air Quality Index (AQI) stood at 369 at 4 pm.

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According to the India Meteorological Department, a light drizzle is likely during the day and the maximum temperature is expected to settle around 19 degrees Celsius.

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At 8.30 am, Delhi’s Air Quality Index (AQI) stood at 402, in the ‘severe’ category, Central Pollution Control Board (CPCB) data showed.

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Out of the 37 monitoring stations, 32 recorded air quality in the ‘severe plus’ category, with AQI readings reaching as high as 480 at many locations. The remaining stations reported ‘severe’ air quality.

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Out of 35 monitoring stations, 28 recorded air quality in the ‘severe’ category while some breached the 450 mark, classified as ‘severe plus.’

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Between October 16 and December 6, the Environment Department issued 260,258 challans across all four stages of GRAP.

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